
19
Troubleshooting Bluetooth
Are either of the LEDs lit up on top of the WCU?
If not, the system is not powering up. Check power and ground. Also, check the 2 ground fuses in the compressor harness.
Are you trying to connect the app using the Bluetooth menu?
The phone has to be connected to the WCU through the App.
YOU CAN
NOT LINK THE PHONE TO THE WCU USING THE PHONE’S BLUETOOTH MENU!!!
Will the system work with the PPM?
This will help determine if the system is getting power.
Is the vehicle battery above 12 volts?
Is the phone’s Bluetooth turned on?
Is the phone in “Airplane Mode”?
Is the phone in any kind of battery saver mode?
iPHONE
- The battery icon in the top right corner will be yellow. This can be turned off in the “Settings” menu under the “battery” tab.
ANDROID
- Ensure “Battery Saver” and “Adaptive Battery” are turned off .
Have you restarted the phone?
This is sometimes required to reset battery saver settings.
Are all the app permissions turned on for the app? THEY MUST BE TURNED ON FOR THE APP TO CONNECT.
For Apple, it is “Bluetooth Access” only.
For Android, it is “Location” and “Phone”.
THESE CAN BE FOUND UNDER THE APP IN THE SETTINGS MENU.
Is the App up to date?
Is the app in “Demo” mode?
If the app is in demo mode, the pressures will be climbing evenly. You will have to “kill” the app to get it out of
demo mode. See below!
Have you tried “Killing” the App, not just closing it?
KILLING APP ON APPLE DEVICES WITH ROUND HOME BUTTON - iPHONE 8 AND OLDER.
1. Double-click the Home button to show your most recently used apps.
2. Swipe right or left to fi nd the app that you want to close.
3. Swipe up on the app’s preview to close the app.
KILLING APPS ON APPLE DEVICES WITH NO ROUND HOME BUTTON - iPHONE 10 AND NEWER:
1. At the Home screen of the iPhone , or while in an app, swipe up from the bottom of the screen and pause while still pressing the
screen.
2. When the App Switcher comes up, swipe left and right through the diff erent app cards to fi nd the app that you want to close.
3. Use a quick swipe upwards to close the app.
THERE ARE SO MANY DIFFERENT WAYS TO KILL THE APP ON ANDROID THAT YOU WILL HAVE TO GOOGLE HOW TO
DO IT ON YOUR PARTICULAR PHONE.
Have you deleted the App and reinstalled it?
Doing the pairing sequence in the correct order is critical
-
Open the app and wait for
RT#### (this number is unit specifi c and will
vary)
to pop up on available devices screen, push the pairing button (make sure light is fl ashing rapidly), then push pairing button on available
devices menu.
Reset the WCU by unplugging the gray plug with the key on and plugging it back in.
Have you tried a diff erent phone?
This will help determine if it’s a problem with the system or a phone issue.
Make sure WCU isn’t encased in something and can send out a good signal
.
If you have the WCU incased in metal, it can aff ect the
range of the Bluetooth signal.